Convert kilowatt-hours to joules
1 kWh = 3600000 J — exactly. Both units are defined against the SI, so this factor is a fraction, not an approximation.
3 600 000J
Exact decimal: 3600000
1 kWh = 3600000 J
How to convert kilowatt-hours to joules
Multiply the number of kilowatt-hours by 3600000 to get joules.
The exact factor is 3600000 .
Kilowatt-hour: How electricity is billed everywhere.
Kilowatt-hour to Joule conversion table
| Kilowatt-hours (kWh) | Joules (J) |
|---|---|
| 1 kWh | 3 600 000 |
| 2 kWh | 7 200 000 |
| 3 kWh | 10 800 000 |
| 5 kWh | 18 000 000 |
| 10 kWh | 36 000 000 |
| 20 kWh | 72 000 000 |
| 25 kWh | 90 000 000 |
| 50 kWh | 180 000 000 |
| 100 kWh | 360 000 000 |
| 250 kWh | 900 000 000 |
| 500 kWh | 1 800 000 000 |
| 1000 kWh | 3 600 000 000 |
Joule to Kilowatt-hour conversion table
| Joules (J) | Kilowatt-hours (kWh) |
|---|---|
| 1 J | 0.000 000 277 777 78 |
| 2 J | 0.000 000 555 555 56 |
| 3 J | 0.000 000 833 333 33 |
| 5 J | 0.000 001 388 888 9 |
| 10 J | 0.000 002 777 777 8 |
| 20 J | 0.000 005 555 555 6 |
| 25 J | 0.000 006 944 444 4 |
| 50 J | 0.000 013 888 889 |
| 100 J | 0.000 027 777 778 |
| 250 J | 0.000 069 444 444 |
| 500 J | 0.000 138 888 89 |
| 1000 J | 0.000 277 777 78 |
Frequently asked
How many joules are in a kilowatt-hour?
One kilowatt-hour equals 3600000 joules (kWh → J). That figure is exact, not rounded.
How do you convert kilowatt-hours to joules?
Multiply the number of kilowatt-hours by 3600000 to get joules.
What is 1 J in kilowatt-hours?
One joule is 0.0000002777777778 kilowatt-hours.
What is 10 kWh in J?
10 kWh = 36 000 000 J.
What exactly is a kilowatt-hour?
How electricity is billed everywhere.